Do you want to have high pressure hot water coming from your taps and showers? Then you need to get an unvented cylinder
Use our easy online booking form to schedule a survey visit at your convenience.
The unvented cylinder engineer will inspect the boiler, provide an estimate, and confirm the details.
On the scheduled day, the engineer will perform the service, ensuring you enjoy a safe and efficient installation.
At My Plumber, we specialise in unvented cylinder & Megaflo installation, servicing, and repair across London. Our expert, Gas Safe-certified engineers ensure your home enjoys consistent and high-pressure hot water, offering long-term solutions for your heating and hot water needs. Whether you need an unvented cylinder installed in a new build or require a repair on your existing Megaflo system, we have the experience to handle it all.
Water Dripping from the Expansion Pipe
Leakages from the Combination Valve
Low-Pressure Leaking Shower
Strange Noises from the Vessel
Clogged Inlets and Inconsistent Water Flow
General Leaks and Corrosion
Limescale Damage
Difficulties Setting and Maintaining the Right Temperature
| Appointments | 8am – 6pm | Before/After Working Hours | |
|---|---|---|---|
| First Half Hour | £67 | £78 | |
| Subsequent Half Hours | £54 | £66 | |
| Day Rates | £591 | – | |
| Appointments | 8am – 6pm |
|---|---|
| First Half Hour | £78 |
| Subsequent Half Hours | £66 |
| Appointments | Before/After Working Hours |
|---|---|
| First Half Hour | £84 |
| Subsequent Half Hours | £72 |
The minimum appointment time you can book is 1 hour, then we charge on an half hour basis. You always pay only for the actual time spent. If there is any shopping time and extra materials needed they come on top of the initial quote.
At My Plumber, we provide expert unvented hot water cylinders and Megaflo installation services throughout London, ensuring you have a consistent, high-pressure hot water supply in your home. Unvented systems are gaining popularity due to their ability to deliver high water pressure directly from the mains, offering reliable and efficient heating solutions for households of all sizes.
Unlike traditional systems with tanks, an unvented cylinder is connected directly to the mains water supply, allowing for higher pressure and improved water flow. This means that you get more consistent hot water throughout your home, making your shower experience, bath filling, and kitchen tasks much more efficient.
Moreover, unvented cylinders are quieter than traditional systems, eliminating the gurgling sounds often heard with older systems when water tanks refill slowly. Additionally, these systems reduce the risk of pipes freezing during colder months, as their water pipes are built into the loft.
At My Plumber, we offer installation, maintenance, and repair services for all types of unvented hot water cylinders, including Megaflo. Our engineers are equipped to install both direct electric immersion tanks and indirect gas-powered cylinders. If you're considering replacing your hot water system, it's important to consult with us first, as each home has unique needs. Our expert technician will visit your property to assess your requirements and recommend the best solution tailored to your specific needs.
At My Plumber, we offer expert servicing and maintenance of unvented hot water cylinders in London. Unvented cylinders are pressurised systems that need regular servicing to stay efficient and safe. Having a G3-certified engineer service your system annually helps maintain optimal performance, extend its lifespan, and prevent costly repairs. Our engineers conduct thorough inspections to identify potential issues early and ensure your heating system operates smoothly year-round.
Filter and Strainer Cleaning
Cylinder Integrity Check
Air Charge Pressure
Float-Operated Valve
Internal Expansion Facility
Temperature and Pressure Relief Valve Testing
Expansion Relief Valve Inspection
Pressure Check
Flow Diffuser Cleaning
By providing thorough servicing and maintenance, we ensure that your unvented cylinder remains in optimal condition, delivering efficient, high-pressure hot water without interruption.
At My Plumber, we specialise in unvented hot water cylinder repairs and troubleshooting for homes across London. Unvented cylinders are complex systems that require expert attention when issues arise. If you suspect or discover that your unvented hot water cylinder is malfunctioning, don't hesitate to contact us. We offer fast and efficient repairs, ensuring minimal disruption to your home.
Unvented hot water cylinders, including Megaflo systems, can face a variety of faults. My Plumber's engineers are equipped to handle all types of unvented cylinder repairs. Some of the common issues we fix include:
Malfunctioning Controls and Safety Devices
Faulty Thermostats
Loss of Power
Failed Expansion Vessels
Faulty Expansion Valves
If you're experiencing issues with your unvented hot water cylinder, look for these signs:
The boiler is on, but there's no hot water. This could indicate a failure in the heating element or thermostat.
Hot water only lasts for a few minutes. A malfunctioning thermostat, heating element, or a buildup of sediment in the tank could cause short-lived hot water.
Water Escapes Through a Tundish - A sign that the pressure relief valve is not functioning properly, resulting in overflow.
Water isn't heating up when the electric element is on - Indicates a potential failure in the electric immersion heater or thermostat.
Megaflow is the brand leader in unvented domestic water heating. An unvented cylinder can often provide a higher level of hot water than a combi boiler and can be an ideal solution for larger properties with multiple bathrooms. It's one of the most trusted names in the industry, offering a range of benefits that make it an excellent choice for many homeowners. Here are the top reasons why you should choose Megaflo for your home:
Brand Leader in Unvented Domestic Water Heating
Ideal for Larger Properties with Multiple Bathrooms
Fast Filling of Baths
More Powerful Showers
Flexible Installation Locations
Energy Efficient
Whether you need a new installation, a replacement system, or reliable maintenance, My Plumber is your go-to provider for unvented cylinder and Megaflo services in London.
Certified Engineers
7-Day Service
Fully Insured & Guaranteed
Transparent Pricing
Fast Response Times
Expert Installation
Comprehensive Repairs
Ongoing Maintenance
Below are some frequently asked questions regarding Megaflow and Unvented Cylinders. If you require further information on Megaflow and Unvented Cylinders then please do not hesitate to get in touch.
What is an Unvented Cylinder or Megaflow System?
How much do Megaflow installations cost?
How much do Unvented Cylinder installation cost?
Where can an Unvented Cylinder be installed?
Installation of an Unvented Cylinder or Megaflow system
Inlet Pressures for Unvented Cylinder or Megaflow systems operate?
Does my Megaflow or Unvented System need to be serviced?
Is my mains water supply suitable?
Can a Megaflo go in the loft?
My Plumber is part of the Fantastic Services brand - a property maintenance service company with 11 years of experience in the sector. This means that you can now take advantage of the various attractive benefits that nearly 70,000 customers enjoy on a regular basis through the company’s popular membership programme.
By joining the Fantastic Club, you can not only make some significant savings on your plumbing and heating services with us but also book over 100 professional property maintenance services at promotional rates.
Secured payment powered bystripe
We’ve got locally based teams of certified gas-safe registered engineers, qualified plumbers and drainage specialists across London, who are ready to assist you fast and with your complete satisfaction in mind. They strive to arrive within 60 minutes to help you out, regardless of whether you’re a homeowner, tenant, landlord or business proprietor located in the capital city.
Over the past decade the My Plumber's amazing team of skilled plumbers, gas engineers, electricians, and handymen have been recognised by winning awards and being finalists for multiple awards across London.
